package com.violet.java;

import java.util.HashMap;

/**
 * @author shkstart
 * @date 2022/3/23 - 22:01
 */
public class DebugTest01 {
    public static void main(String[] args) {
        HashMap<String,String> map = new HashMap<>();
        map.put("name","Tom");
        map.put("age","12");

        map.put("school","Tsinghua");
        map.put("major","computer");

        String age = map.get("age");

        System.out.println(age);

        map.remove("major");

        System.out.println(map);

    }

}
